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US20120122753A1 - Liquid washing or cleaning agent comprising anti-graying polysaccharide - Google Patents

Liquid washing or cleaning agent comprising anti-graying polysaccharide Download PDF

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Publication number
US20120122753A1
US20120122753A1 US13/349,672 US201213349672A US2012122753A1 US 20120122753 A1 US20120122753 A1 US 20120122753A1 US 201213349672 A US201213349672 A US 201213349672A US 2012122753 A1 US2012122753 A1 US 2012122753A1
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US
United States
Prior art keywords
cleaning agent
washing
liquid washing
cellulose
graying
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US13/349,672
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English (en)
Inventor
Peter Schmiedel
Ulrich Pegelow
Evelyn Langen
Sabine Schümann
Martina Hutmacher
Heinz-Jürgen Völkel
Marc-Steffen Schiedel
Matthias Sunder
Birgit Glüsen
Cornelius Bessler
Timothy O'Connell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Assigned to HENKEL AG & CO. KGAA reassignment HENKEL AG & CO. KGAA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: PEGELOW, ULRICH, SCHMIEDEL, PETER, SCHIEDEL, MARC-STEFFEN, SUNDER, MATTHIAS, BESSLER, CORNELIUS, GLUSEN, BIRGIT, HUTMACHER, MARTINA, O'CONNELL, TIMOTHY, SCHUMANN, SABINE, LANGEN, EVELYN, VOLKEL, HEINZ-JURGEN
Publication of US20120122753A1 publication Critical patent/US20120122753A1/en
Abandoned legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/22—Carbohydrates or derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/046—Salts
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/22—Carbohydrates or derivatives thereof
    • C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
    • C11D3/225—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin etherified, e.g. CMC
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/22—Carbohydrates or derivatives thereof
    • C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
    • C11D3/228—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin with phosphorus- or sulfur-containing groups

Definitions

  • the present invention relates to a liquid washing or cleaning agent comprising at least one surfactant and a graying-inhibiting polysaccharide.
  • the invention also relates to the use of the washing or cleaning agent as well as a process for its manufacture.
  • washing agents preferably comprise so-called graying inhibitors, such as carboxymethyl cellulose (CMC).
  • CMC carboxymethyl cellulose
  • EP 054325 A1 describes a washing agent with carboxymethyl cellulose as the graying inhibitor.
  • liquid washing or cleaning agents comprising carboxymethyl cellulose as the graying inhibitor have not yet appeared in the market.
  • Another technical issue is that stable dispersions of the carboxymethyl cellulose in the matrix of a washing or cleaning agent are very difficult to obtain, and precipitations in the form of sediments and/or residues occur during storage of a carboxymethyl cellulose-containing washing or cleaning agent.
  • Carboxymethyl cellulose can be incorporated into powdered washing agents without problem, and there is a significantly lower graying of the washing compared to liquid washing agents.
  • graying-inhibiting polysaccharides can be stably incorporated into liquid washing or cleaning agents if the liquid matrix comprises both a thickener and an inorganic salt.
  • a stable, liquid washing or cleaning agent comprises 0.1 to 60 wt % surfactant, 0.1 to 5 wt % of a graying-inhibiting polysaccharide, 0.05 to 1 wt % of a thickener, and 1 to 20 wt % of an inorganic salt.
  • the present invention is a liquid washing or cleaning agent composition that comprises a graying-inhibiting polysaccharide such as CMC, made stable by the presence of both a thickener and an inorganic salt in the liquid matrix.
  • the present invention is a stable liquid washing or cleaning agent comprising: (a) 0.1 to 60 wt % surfactant; (b) 0.1 to 5 wt % of a graying-inhibiting polysaccharide; (c) 0.05 to 1 wt % of a thickener; and (d) 1 to 20 wt % of an inorganic salt.
  • the addition of the salt is believed to provoke a micro phase separation in the liquid washing or cleaning agent, subsequently resulting in a surfactant-rich phase dispersed in a continuous, surfactant-poor phase.
  • the presence of the thickener is believed to prevent the continuous, surfactant-poor phase from macroscopically separating out.
  • relatively low amounts of thickener suffice to increase viscosity and stably disperse solids in the liquid matrix.
  • the graying-inhibiting polysaccharide is selected from the group consisting of carboxymethyl cellulose (CMC), ether sulfonic acid salts of starch, ether sulfonic acid salts of cellulose, acidic sulfuric acid ester salts of cellulose, acidic sulfuric acid ester salts of starch, methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose methyl hydroxyethyl cellulose, methyl carboxymethyl cellulose, ethyl hydroxyethyl cellulose, and mixtures thereof.
  • the polysaccharide carboxymethyl cellulose, in particular sodium carboxymethyl cellulose is quite particularly preferred.
  • the inorganic salt is selected from the group consisting of sodium chloride, potassium chloride, sodium sulfate, sodium carbonate, potassium sulfate, potassium carbonate, sodium hydrogen carbonate, potassium hydrogen carbonate, calcium chloride, magnesium chloride, and mixtures thereof, because these salts are highly water-soluble.
  • the thickener is selected from the group consisting of xanthan, guar, carrageenan, agar agar, gellan, pectin, locust bean flour, and mixtures thereof. These compounds are also effective thickeners in the presence of inorganic salts.
  • the washing or cleaning agent comprises xanthan as the thickener, as xanthan thickens effectively even in the presence of high salt concentrations and prevents a macroscopic separation of the continuous phase.
  • the washing or cleaning agent further includes a cellulase.
  • graying-inhibiting cellulose (and/or its derivatives), such as CMC can be incorporated in not only a physically stable manner but also in a chemically stable manner.
  • the graying-inhibiting polysaccharide and the cellulase seem to be present in different phases, and are therefore physically separated from one another.
  • the cellulose is present in the surfactant-rich phase and the cellulase is in the continuous surfactant-poor phase.
  • the liquid washing or cleaning agent comprises an acrylic polymer. It has been surprisingly found that the graying-inhibiting action of the liquid washing or cleaning agent can be enhanced by the presence of an acrylic polymer.
  • the present invention also relates to the use of the inventive washing or cleaning agent for washing and/or cleaning textile fabrics.
  • the invention also includes the use of 0.05 to 1 wt % of a thickener and 1 to 20 wt % of an inorganic salt for producing a micro phase separation in a liquid washing or cleaning agent.
  • the liquid washing or cleaning agent preferably comprises a graying-inhibiting polysaccharide.
  • the invention in another aspect, relates to a process for manufacturing a micro two-phase liquid washing or cleaning agent comprising 0.1 to 60 wt % surfactant, 0.1 to 5 wt % of a graying-inhibiting polysaccharide, and 0.05 to 1 wt % of a thickener, with said method comprising the step of (a) adding from 1 to 20 wt % of an inorganic salt to the liquid washing or cleaning agent.
  • the liquid washing or cleaning agent according to the invention comprises a graying-inhibiting polysaccharide, surfactant, a thickener and an inorganic salt.
  • the liquid washing or cleaning agent preferably comprises carboxymethyl cellulose (CMC), an ether sulfonic acid salt of starch, an ether sulfonic acid salt of cellulose, an acidic sulfuric acid ester salt of cellulose, an acidic sulfuric acid ester salt of starch, methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose methyl hydroxyethyl cellulose, methyl carboxymethyl cellulose, ethyl hydroxyethyl cellulose, or a mixture of these graying-inhibiting polysaccharides as the graying-inhibiting polysaccharide.
  • the amount of graying-inhibiting polysaccharide is preferably from 0.1 to 5 wt %, based on the total weight of the washing or cleaning agent.
  • the amount of graying-inhibiting polysaccharide is preferably 0.2 to 4 wt %, and quite particularly preferably between 0.5 and 3 wt %, based on the total amount of the washing or cleaning agent.
  • Sodium carboxymethyl celluloses are preferably incorporated in powder form and/or in granulate form with a bulk density of 300 to 700 g/L and a substitution degree of 0.4 to 1.5, preferably 0.5 to 0.9.
  • the substitution degree indicates how many of the three possible hydroxyl groups of the cellulose are etherified.
  • the washing or cleaning agent comprises at least one surfactant, wherein anionic, non-ionic, zwitterionic and/or amphoteric surfactants can be employed. Mixtures of anionic and non-ionic surfactants are preferred.
  • the total surfactant content of the liquid washing or cleaning agent is preferably below 60 wt % and particularly preferably below 45 wt %, based on the total weight of the liquid washing or cleaning agent.
  • Suitable non-ionic surfactants include alkoxylated fatty alcohols, alkoxylated fatty acid alkyl esters, fatty acid amides, alkoxylated fatty acid amides, polyhydroxyfatty acid amides, alkylphenol polyglycol ethers, amine oxides, alkyl polyglucosides and mixtures thereof.
  • Preferred non-ionic surfactants include the alkoxylated, and preferably ethoxylated, primary alcohols containing 8 to 18 carbon atoms and, on average, 1 to 12 moles of ethylene oxide (EO) per mole of alcohol, in which the alcohol group may be linear or, preferably, methyl-branched in the 2-position, or may contain e.g. linear and methyl-branched groups in the form of the mixtures typically present in Oxo alcohol groups.
  • EO ethylene oxide
  • alcohol ethoxylates with linear alcohol groups of natural origin having 12 to 18 carbon atoms, e.g. available from coco-, palm-, tallow- or oleyl alcohol, and an average of 2 to 8 EO per mole alcohol are preferred.
  • Exemplary preferred ethoxylated alcohols include C 12-14 alcohols with 3 EO, 4 EO or 7 EO, C 9-11 alcohol with 7 EO, C 13-15 alcohols with 3 EO, 5 EO, 7 EO or 8 EO, C 12-18 alcohols with 3 EO, 5 EO or 7E0 and mixtures thereof, such as mixtures of C 12-14 alcohol with 3 EO and C 12-18 alcohol with 7 EO.
  • the cited degrees of ethoxylation constitute statistically average values that can be a whole or a fractional number for a specific product.
  • Preferred alcohol ethoxylates have a narrowed homolog distribution (narrow range ethoxylates, NRE).
  • fatty alcohols with more than 12 EO can also be used. Examples of these are tallow fatty alcohol with 14 EO, 25 EO, 30 EO or 40 EO.
  • non-ionic surfactants that comprise the EO and PO groups together in the molecule are employable according to the invention. Further suitable is also a mixture of a (highly) branched ethoxylated fatty alcohol and a linear ethoxylated fatty alcohol, such as for example a mixture of a C 16-18 fatty alcohol with 7 EO and 2-propylheptanol with 7 EO.
  • the washing, cleaning, post-treatment or auxiliary washing agent particularly preferably comprises a C 12-18 fatty alcohol with 7 EO or a C 13-15 oxoalcohol with 7 EO.
  • the content of non-ionic surfactants in the washing or cleaning agent is preferably from 3 to 40 wt %, advantageously 5 to 30 wt %, and particularly from 7 to 20 wt %, in each case based on the total weight of the washing or cleaning agent.
  • the washing or cleaning agent may also comprise anionic surfactants.
  • anionic surfactants Sulfonates, sulfates, soaps, alkyl phosphates, anionic silico-surfactants, and mixtures thereof are preferably employed as the anionic surfactant.
  • Suitable surfactants of the sulfonate type are, advantageously C 9-13 alkylbenzene sulfonates, olefin sulfonates, i.e. mixtures of alkene- and hydroxyalkane sulfonates and disulfonates, as are obtained, for example, from C 12-18 monoolefins having a terminal or internal double bond, by sulfonation with gaseous sulfur trioxide and subsequent alkaline or acidic hydrolysis of the sulfonation products.
  • esters of ⁇ -sulfofatty acids for example the ⁇ -sulfonated methyl esters of hydrogenated coco-, palm nut- or tallow acids, are also suitable.
  • Preferred alk(en)yl sulfates are the alkali metal and especially the sodium salts of the sulfuric acid half-esters derived from the C 12 -C 18 fatty alcohols, for example from coconut butter alcohol, tallow alcohol, lauryl, myristyl, cetyl or stearyl alcohol or from C 10 -C 20 Oxo alcohols and those half-esters of secondary alcohols of these chain lengths.
  • the C 12 -C 16 alkyl sulfates and C 12 -C 15 alkyl sulfates as well as C 14 -C 15 alkyl sulfates are preferred on the grounds of washing performance.
  • 2,3-Alkyl sulfates are also suitable anionic surfactants.
  • Sulfuric acid mono-esters derived from straight-chain or branched C 7-21 alcohols ethoxylated with 1 to 6 moles ethylene oxide are also suitable, for example 2-methyl-branched C 9-11 alcohols with an average of 3.5 mole ethylene oxide (EO) or C 12-18 fatty alcohols with 1 to 4 EO.
  • EO ethylene oxide
  • Soaps are also preferred anionic surfactants.
  • Saturated and unsaturated fatty acid soaps are suitable, such as the salts of lauric acid, myristic acid, palmitic acid, stearic acid, (hydrogenated) erucic acid and behenic acid, and especially soap mixtures derived from natural fatty acids such as coconut oil fatty acid, palm kernel oil fatty acid, olive oil fatty acid or tallow fatty acid.
  • the anionic surfactants can be present in the form of their sodium, potassium, magnesium, or ammonium salts.
  • the anionic surfactants are preferably present in the form of their sodium salts.
  • Other preferred counter ions for the anionic surfactants include the protonated forms of amines such as choline, triethylamine or methylethylamine.
  • the content of anionic surfactants in a washing or cleaning agent is preferably from 1 to 40 wt %, advantageously from 5 to 30 wt %, and quite particularly preferably from 10 to 25 wt %, in each case based on the total weight of washing or cleaning agent.
  • the washing or cleaning agent further comprises a thickener as an essential ingredient of the composition.
  • the thickener may comprise for example xanthan, guar, carrageenan, agar agar, gellan, pectin, locust bean flour, and mixtures thereof. In combination with the inorganic salt, these thickeners lend the washing or cleaning agent a flow limit even at low temperatures.
  • Xanthan is particularly preferably employed as the thickener, as it also stably and effectively thickens the washing or cleaning agent at high salt concentrations.
  • the thickener stabilizes the continuous surfactant-poor phase and prevents a macroscopic phase separation.
  • (meth)acrylic acid copolymers can also be employed as the thickener.
  • Suitable acrylic and methacrylic copolymers include, but are not limited to, the high molecular weight homopolymers of acrylic acid, optionally crosslinked with a polyalkenyl polyether, in particular an allyl ether of saccharose, pentaerythritol or propylene (INCI name according to the “International Dictionary of Cosmetic Ingredients” of “The Cosmetic, Toiletry and Fragrance Association (CTFA)”: Carbomer), which are also called carboxyvinyl polymers.
  • CFA Cosmetic, Toiletry and Fragrance Association
  • Polyacrylic acids of this type are available inter alia under the trade names Polygel® and Carbopol®.
  • acrylic acid copolymers are also suitable: (i) copolymers of two or more monomers of the group of the acrylic acid, methacrylic acid and their simple esters, preferably formed with C 1-4 alkanols (INCI Acrylates Copolymer), which are available for example under the trade names Aculyn®, Acusol® or Tego® Polymer; (ii) crosslinked high molecular weight acrylic acid copolymers, to which belong for example the copolymers of C 10-30 alkyl acrylates with one or more monomers of the group of the acrylic acid, methacrylic acid and their simple esters, preferably formed with C 1-4 alkanols, crosslinked with an allyl ether of saccharose or of pentaerythritol (INCI Acrylates/C 10-30 Alkyl Acrylate Crosspolymer) and which are available under the trade name Carbopol®.
  • Further suitable polymers are (meth)acrylic acid (co)polymers of the Sokalan®
  • the inventive washing or cleaning agent comprises a (meth)acrylic acid (co)polymer in combination with another thickener, preferably xanthan.
  • the washing or cleaning agent may comprise 0.05 to 1.5 wt % and preferably 0.1 to 1 wt % thickener, each based on the total washing or cleaning agent.
  • the amount of thickener depends on the type of thickener and the desired degree of thickening.
  • the inorganic salt is added in an amount of from 1 to 20 wt %, based on the total weight of washing or cleaning agent.
  • Preferred inorganic salts include sodium chloride, potassium chloride, sodium sulfate, sodium carbonate, potassium sulfate, potassium carbonate, sodium hydrogen carbonate, potassium hydrogen carbonate, calcium chloride, magnesium chloride and mixtures thereof. Particularly stable washing or cleaning agents are obtained by adding sodium sulfate.
  • the addition of the inorganic salt leads to a separation of the liquid matrix of the washing or cleaning agent composition into a surfactant-rich, liquid crystalline phase dispersed in a continuous, surfactant-poor phase.
  • This micro phase separation makes it possible to stably disperse a graying-inhibiting polysaccharide in a liquid washing or cleaning agent.
  • the inorganic salt additionally has an influence on the viscosity of the washing or cleaning agent of the present invention, and this viscosity can be adjusted with the amount of inorganic salt in such a way that the washing or cleaning agent doses well and such that a container with the washing or cleaning agent is easily emptied.
  • the washing or cleaning agent may also comprise additional ingredients that further improve the applied uses and/or the esthetic properties of the washing or cleaning agent.
  • the washing or cleaning agent may additionally comprise at least one of substances selected from the group consisting of builders, bleaching agents, enzymes, electrolytes, non-aqueous solvents, pH adjustors, perfumes, perfume carriers, fluorescent agents, dyes, hydrotropes, foam inhibitors, silicone oils, soil-release polymers, additional graying inhibitors, shrink preventers, anti-crease agents, color transfer inhibitors, antimicrobials, germicides, fungicides, antioxidants, preservatives, corrosion inhibitors, antistats, bittering agents, ironing aids, water-repellents and impregnation agents, swelling and non-skid agents, softening components, UV-absorbers, and mixtures thereof.
  • substances selected from the group consisting of builders, bleaching agents, enzymes, electrolytes, non-aqueous solvents, pH adjustors, perfumes, perfume carriers, fluorescent agents, dyes, hydrotropes, foam inhibitors, silicone oils, soil-release polymers, additional graying inhibitors, shrink preventers, anti-crease agents
  • Silicates, aluminum silicates (particularly zeolites), carbonates, salts of organic di- and polycarboxylic acids as well as mixtures of these materials are useful as builders in the washing or cleaning agent.
  • Exemplary organic builders include, but are not limited to, the polycarboxylic acids usable in the form of their sodium salts, where polycarboxylic acids are understood to be carboxylic acids that carry more than one acid functional group. These include, for example, citric acid, adipic acid, succinic acid, glutaric acid, malic acid, tartaric acid, maleic acid, fumaric acid, sugar acids, amino carboxylic acids, nitrilotriacetic acid (NTA), methylglycine diacetic acid (MGDA) and their derivatives, and mixtures thereof.
  • Preferred salts are the salts of polycarboxylic acids such as citric acid, adipic acid, succinic acid, glutaric acid, tartaric acid, sugar acids and mixtures thereof.
  • Polymeric polycarboxylates are also suitable as builders. They are for example the alkali metal salts of polyacrylic or polymethacrylic acid, for example those with a molecular weight of from about 600 to 750,000 g/mol.
  • Particularly suitable polymers include the polyacrylates having a molecular weight of from about 1,000 to 15,000 g/mol.
  • preferred representatives from this group are the short-chain polyacrylates with molecular weights of 1,000 to 10,000 g/mol, and more preferably from about 1,000 to 5,000 g/mol.
  • copolymeric polycarboxylates include the copolymers having acrylic acid and methacrylic acid monomers, and having acrylic acid or methacrylic acid and maleic acid monomers.
  • the polymers can also comprise allyl sulfonic acids, allyloxybenzene sulfonic acid and methallyl sulfonic acid monomers.
  • soluble builders are preferred, such as for example citric acid, or acrylic polymers having a molecular weight of 1,000 to 5,000 g/mol.
  • the washing or cleaning agent preferably includes an acrylic polymer to further increase the graying-inhibiting action of the washing or cleaning agent.
  • acrylic polymer is understood to mean (co)polymers that contain at least one monomer selected from the group consisting of acrylic acid, methacrylic acid, acrylic acid esters or methacrylic acid esters.
  • the acrylic polymer can be a thickening acrylic polymer and may be employed in the washing or cleaning agent as a thickener. In this case the acrylic polymer is likely hydrophobically modified. Alternatively, the acrylic polymer can also function as a builder. A particularly strong increase in the graying-inhibiting action is observed with (poly)anionic acrylic polymers. For this reason the washing or cleaning agent includes a homopolymer of acrylic acid as the preferred acrylic polymer.
  • the liquid washing or cleaning agent can also comprise an enzyme or a mixture of enzymes.
  • Suitable enzymes are, in particular, those from the classes of hydrolases, such as the proteases, (poly)esterases, lipases amylases, glycosyl hydrolases, hemicellulases, cutinases, ⁇ -glucanases, oxidases, peroxidases, mannanases, perhydrolases, oxidoreductases, laccases, and mixtures thereof.
  • cellulases are preferably added in combination with proteases, amylases, lipases, mannanases, laccases, tannanases and esterases/polyesterases as well as with mixtures of two or more of these enzymes.
  • the quantity of enzyme(s) is from 0.01 to 10 wt %, and preferably from 0.12 to about 3 wt %, based on the total weight of the composition.
  • the enzymes are preferably added as enzyme-liquid formulation(s). If the liquid washing or cleaning agent comprises a mixture of enzymes, then at least one enzyme can be granulate, encapsulated, or adsorbed on a carrier. Quite preferred washing or cleaning agents comprise cellulase; cellulase and protease; cellulase, protease and amylase; cellulase, protease, amylase and lipase or amylase; cellulase, protease, amylase, lipase and mannanase.
  • the washing or cleaning agents according to the invention are liquid and comprise water as the major solvent.
  • non-aqueous solvents can be added to the washing or cleaning agent.
  • Suitable non-aqueous solvents include mono- or polyhydric alcohols, alkanolamines or glycol ethers, in so far that they are miscible with water in the defined concentration range.
  • the solvent is preferably selected from the group consisting of ethanol, n-propanol, i-propanol, butanols, glycol, propane diol, butane diol, glycerin, diglycol, propyl diglycol, butyl diglycol, hexylene glycol, ethylene glycol methyl ether, ethylene glycol ethyl ether, ethylene glycol propyl ether, ethylene glycol mono-n-butyl ether, diethylene glycol methyl ether, diethylene glycol ethyl ether, propylene glycol methyl ether, propylene glycol ethyl ether, propylene glycol propyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, di-isopropylene glycol monomethyl ether, di-isopropylene glycol monoethyl ether, methoxytriglycol, ethoxytrig
  • the washing or cleaning agent comprises a polyol as the non-aqueous solvent.
  • the polyol may be glycerin, 1,2-propane diol, 1,3-propane diol, ethylene glycol, diethylene glycol, dipropylene glycol, or mixtures thereof.
  • the washing or cleaning agent preferably comprises a mixture of a polyol and a monohydric alcohol.
  • Non-aqueous solvents can be added to the washing or cleaning agent in amounts between 0.5 and 15 wt %. However it is preferable that the non-aqueous solvent, if present, be below about 12 wt % based on the total weight of the composition.
  • the washing or cleaning agents according to the invention can be used for washing and/or cleaning textile fabrics.
  • the washing or cleaning agents are manufactured by means of usual and known methods and processes.
  • the ingredients may be blended in a stirred tank with the water preferably added first.
  • the thickener and subsequently the inorganic salt are then added to the stirred water followed by the surfactant(s) and any non-aqueous solvents (if used).
  • the fatty acid when present, is then added, and alkalinity present results in the saponification of the fatty acid(s) as well as any anionic surfactants that were added in their acid form.
  • the further ingredients, including the graying-inhibiting polysaccharide, are then added, preferably in portions.
  • TABLE 1 shows one exemplary embodiment of the inventive washing or cleaning agent, designated E1. All quantities in TABLE 1 represent weight percent (wt %) active substances, where the weight of the ingredient is based on the total weight of the composition.
  • the sodium carboxymethyl cellulose used for the exemplary composition E1 of TABLE 1 had a bulk density of 300 to 600 g/L and a substitution degree of 0.8 ⁇ 0.05.
  • composition E1 was stable for weeks in storage.
  • a washing test was conducted to demonstrate the graying-inhibiting action.
  • the washing or cleaning agent E1 was compared to a commercial powdered washing agent (V1) (with a sodium carboxymethyl cellulose content of 1.4 wt %) and to a commercial liquid washing agent V2 that did not contain any graying-inhibiting polysaccharide.
  • the salt concentration was varied, each in compensation for water, for a washing or cleaning agent having a composition according to TABLE 1, and the viscosities of the resulting washing or cleaning agent were determined. Viscosity was measured with a Brookfield viscometer at a temperature of 20° C. and a rotation of 20 rpm. Spindle 3 was used for the salt concentrations of 0 wt %, 2 wt % and 5 wt % whereas spindle 4 was used for the other concentrations. The results are delineated in TABLE 3.
  • the reference composition in TABLE 3 having no salt content (0 wt %) is not part of the present invention as this composition is not micro two-phase in nature without added inorganic salt.

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US13/349,672 2009-07-17 2012-01-13 Liquid washing or cleaning agent comprising anti-graying polysaccharide Abandoned US20120122753A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102009027811A DE102009027811A1 (de) 2009-07-17 2009-07-17 Flüssiges Wasch-oder Reinigungsmittel mit vergrauungsinhibierendem Polysaccarid
DE102009027811.7 2009-07-17
PCT/EP2010/060242 WO2011006973A1 (de) 2009-07-17 2010-07-15 Flüssiges wasch- oder reinigungsmittel mit vergrauungsinhibierendem polysaccharid

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PCT/EP2010/060242 Continuation WO2011006973A1 (de) 2009-07-17 2010-07-15 Flüssiges wasch- oder reinigungsmittel mit vergrauungsinhibierendem polysaccharid

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EP (1) EP2454357A1 (es)
JP (1) JP2012533640A (es)
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EP3101102B2 (en) * 2015-06-05 2023-12-13 The Procter & Gamble Company Compacted liquid laundry detergent composition
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WO2011006973A1 (de) 2011-01-20
KR20120089621A (ko) 2012-08-13

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